Improvement in spark-arresters



Z Sheets-Sheet 1. J. N. WEAVER.

SPARK-ARYRESTER. No.18'3,4;36. Patented Oct.17,1876.

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5 ATTORNEYS N. PETERS. PHOTO-LITHOGNAPHEH, WASHINGTON, av C.

.2 Sheets-Sheet z. I. N. WEAVER.

, SPA-RK-ARRESTER.-

,1 3,43 5, Patented on. 17.- 1876.

i I 1 I I I r i l WITNESSES INVENTOR I We) 2" 'WJM y gsim, Ma N ATTORNEYS,

N. PETERS, PHOTO-UTHOGRAPHER, WASHINGTGN D C.

JAMES N. WEAVER, .OE WAVEIET'EEWY'" onx:

IMPROVEMENT IN SPARK-ARRESTERS Specification forming part of Letters Patent No. 183,436, dated October 17,1876; application filed I September 9, 1876. 7

' part of this specification, and to the letters and figures of.reference marked thereon.

Figure l of the drawings is a representation of a rear view of my sparlearrester applied to a locomotive; and Fig. 2 is a central vertical sectional view of the same. detail views thereof.

This invention relates to spark-arresters for locomotive steam-engines.

The natures of said invention consists in the combination of spark-receiving chambers with pipes leading from the smoke-box to said chambers; also in the combination of said sparkreceiving chambers or spark-receivers with pipes connecting them to the smoke-stack for the purpose of allowing the escape of steam and, finally, in various auxiliary devices and the combination of the parts and elements hereinafter fully set forth.

In the annexed drawings, A designates the truckframe of a locomotive engine; and B B designate the wheels, and G 0 the axle, of said Figs. 3, 4, and5 truck. I) D are ordinary operating-cylinders suspended by saddle E, which saddle supports a cylindrical smoke-box,F, that is secured in front of a boiler. (Not shown.) Gr represents an exhaust-nozzle communicating with said cylinders D D, and opening into a wire netting, H, which is shaped like an inverted cone and attached by its larger extremity to theinside of the upper part of said smoke-box. Said exhaust-nozzle extends upward from the bottom of said smoke-boxinto the lower and smaller end of said wire netting or cone. To the sides of said exhaust-nozzle G, fronting forward and backward relatively to the motionof the train, are fixed exit-tubes g g, two of said tubes being on one side thereof, and two on the other side. Each pair of said tubes discharges steam directly into the flaring or bell-shaped mouth h of a spark-conducting tube, I, which cominthe rear of said smoke-box. Thetwo spark con'ductingtubes I I are also substantial counterparts of one another. The dead sparks and cinders that settle by gravity in the "bottom of smoke-box F are blown, by means of the exhaust steam, (passing through nozzle G and side exit-tubes g 9,) into sparkiconducting tubes I I, whence they pass into receivers J J. A certain amount of exhaust steam passes with said cinders into said receivers, and this steam is removed by means of pipes K K, which extend from such receivers to the smokestack L. Said smoke stack extends down through the top of said smoke-box F into the upper end of said conical wire netting B, so that said netting prevents unextinguished sparks from passing up through said smokestack. The bottoms of said receivers J J are closed by butterfly-valves M M, thepivotal rods of which are provided with crank-arms m m. Said crankarms are connected-together by a longitudinal rod or bar, N, which is secured to, and operated .by, the lower end of an arm, 0, depending from a sleeve, P, that surrounds a shaft, Q. Said sleeve is provided with an uprightlever or handle, B. When said levelor handle R is rocked backward or forward upon said shaft, longitudinal motion is given to rod or bar N, and valves M M are thereby operated, opening or closing according to the direction of the oscillation of said lever or handle B. When said valves open the cinders in said receivers fall to the ground. When said "alves are closed the sparks and cinders are retained, giving time for the former to be all extinguished before making their exit. Said shaft Q, is pivoted in or upon lugs, arms, I or plates S S extending to the rear from saddle E, and said shaft is provided with armsT v T, whereby it can be rotated for the purpose of operating the cylinder-valves. Said receivers J J taper downward from about the middle of each of them to said butterfly-valves M M to insure the discharge of the cinders and the other substances contained in said receivers. Said valves, by means of levenhaudleR and the other described connections, may be operated from the cab of the engine. U designates a door, which gives access tosmoke-box F. V

designates a front platform, which aflords an additional meansof suspension for one of the spark-receivers J.

The above-described devices may be ap-- plied to stationary engines as well as to locomotive ones. They may also be modified in various ways.

even to only one. Also, there may be only a single spark-receiver, the tubes conveying minished in number.

length. The steam is drawn up through them by the action of the steam passing up the ex haust-nozzle G and smoke-stack L. Each of said pipes is provided at the lower end with a flaring mouth, k, in which is placed a wire screen or strainer, K, (shown in Fig. 3,) which screen prevents cinders and other injurious For instance, the number of steam-exit tubes 9 9 maybe reduced to two, or

particles from beingdrawn up through said pipe with the steam from the spark-receiver, with which it communicates. The upper ends a of said pipes K K communicate with the smokestack through the wire netting above described.

What I claim asnew, and desire to secure by Letters Patent, is

1. Spark-receivers J, in combination with 1 steamvconducting pipe K, smoke-stack L, and

exhaust-nozzle G, whereby the steam is drawn 1 from said spark-receivers, substantially as set forth.

2. The combination of receivers J J with valves M, crank-arms m m, connecting rod or bar N, arm 0, rocking sleeve or shaft Q, and

operating-lever R, substantially asset forth. 3. The combination, with receivers J, of steam conducting pipe .K, having lower bellshaped mouth It and wire screen K, and with exhaust-nozzle G, and smoke-stack L, substantially as and for the purpose set forth.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

JAMES N. WEAVER.

Witnesses: a

DEWITT O. ATWATER, J. NEWTON DEXTER. 

